#region Copyright

// The contents of this file are subject to the Mozilla Public License
//  Version 1.1 (the "License"); you may not use this file except in compliance
//  with the License. You may obtain a copy of the License at
//  
//  http://www.mozilla.org/MPL/
//  
//  Software distributed under the License is distributed on an "AS IS"
//  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
//  License for the specific language governing rights and limitations under 
//  the License.
//  
//  The Initial Developer of the Original Code is Robert Smyth.
//  Portions created by Robert Smyth are Copyright (C) 2008.
//  
//  All Rights Reserved.

#endregion

using NUnitGrid.Framework.Logging;
using NUnitGrid.Framework.NUnitGrid;
using NUnitGrid.Framework.Pipes;


namespace NUnitGrid.Protocol.Commands
{
    public class ClientGridLoadingUpdateTransaction : IProtocolTransaction
    {
        private readonly ITaskProgressListener listener;
        private readonly ILogger logger;
        private readonly int pendingTasks;
        private readonly IPipe pipe;
        private readonly int runningTasks;
        private ProtocolAppCommandMessage commandMessage;

        public ClientGridLoadingUpdateTransaction(IPipe pipe, ILogger logger, ITaskProgressListener listener,
                                                  int pendingTasks, int runningTasks)
        {
            this.pipe = pipe;
            this.logger = logger;
            this.listener = listener;
            this.pendingTasks = pendingTasks;
            this.runningTasks = runningTasks;
        }

        public void SendCommand()
        {
            commandMessage = new ProtocolAppCommandMessage("Write.ClientGridLoadingUpdate");

            commandMessage.AddProperty("PendingTasks", pendingTasks);
            commandMessage.AddProperty("RunningTasks", runningTasks);

            listener.OnTaskStarted(this);

            pipe.SendMessage(commandMessage.ToString());
        }

        public bool IsValidReponse(string responseMessage)
        {
            return commandMessage.IsResponseMessage(responseMessage);
        }

        public void ParseResponse(string response)
        {
            var parser = new ProtocolMessageParser(response);
            var nodeMachineName = parser.GetValue("MachineName");
            listener.OnTaskCompleted(this, true, nodeMachineName);
        }
    }
}